Development of human peripheral hearing revealed by brainstem auditory evoked potentials

摘要: Development of human peripheral hearing from birth to 6 years was investigated by recording brainstem auditory evoked potentials (BAEPs). The threshold BAEPs decreased rapidly during the first 3 months after (2.7 dB/week neonatal period, 2.6 dB/month at 1-3 months), which further decrease occurred more slowly but continued through 1 year age (0.26 3-12 months). A few days birth, 18 dB higher compared adults, and progressively 10, 5 2 1, 12 months, respectively. latencies waves I V as a function rate 0.01 0.05 ms/week 0.02 0.10 ms/month 0.014 0.076 Adult latency value attained 4 for V, These findings suggest that although ear is reported be almost adult-like immaturity in neural functional properties limits sensitivity early childhood. It appears decreases third postnatal month thereafter continues improve postulated are likely critical period development hearing.